The Planned Parenthood Federation of America stressed Friday that multiple investigations into its state affiliates have fallen flat, as the reproductive health organization battles allegations that it has illegally profited from fetal tissue donations for research.

Conservatives were outraged, Congress is promising to investigate. However:

A number of states followed Congress' lead, declaring investigations of their own. But many of those probes -- in Georgia, Indiana, Massachusetts and South Dakota -- have found area Planned Parenthood affiliates to be in full compliance with state laws and regulations.

“In every state where these investigations have concluded, officials have cleared Planned Parenthood of any wrongdoing," said Dawn Laguens, executive vice president of Planned Parenthood Federation of America, in a statement Friday. "We've said all along that Planned Parenthood follows all laws and has very high medical standards, and that's what every one of these investigations has found. This campaign by anti-abortion extremists is nothing less than a fraud, intended to deceive the public with patently false claims in order to pursue an extreme political agenda."